Professional Professional(TS)
Using the [Timestamp] function in the [Signature/Seal] menu, you can apply a timestamp to a PDF file.
Applying a Timestamp
This section explains the procedure for applying a timestamp using the functions in the “Signature/Timestamp” group in the [Signature/Seal] menu.
Timestamps applied using the functions in the “Signature/Timestamp” group will be invisible timestamps without an imprint.
- Ensure that the preparing for timestamp for Amano or SEIKO is ready.
- Open the PDF to which you want to apply a timestamp.
- Select [Timestamp] in the “Signature/Timestamp” group in the [Signature/Seal] menu.
- A Save As dialog box will appear.
- Specify the save location and file name for the PDF with the applied timestamp and save it.
- Select [Verification] from the [Signature/Seal] menu.
Confirm that the status of the applied timestamp is valid, and you’re done.
In the Case of AMANO Timestamp
This section explains the procedure for applying a timestamp using the functions in the “AMANO Timestamp” group in the [Signature/Seal] menu.
The functions in the “AMANO TimeStamp” group are intended for users of the “アマノ電子文書安心パック”.
- Ensure that the preparing for timestamp for Amano is ready.
- Open the PDF to which you want to apply a timestamp.
- Select [Timestamp] in the “AMANO Timestamp” group in the [Signature/Seal] menu.
- A Save As dialog box will appear.
- Specify the save location and file name for the PDF with the applied timestamp and save it.
- Select [Verification] from the [Signature/Seal] menu.
Confirm that the status of the applied timestamp is valid, and you’re done.
- Timestamps applied using the functions in the “AMANO Timestamp” group can have their validity period extended by adding an archive timestamp from [Archive] in the same group.
- The “AMANO Timestamp” group can be shown or hidden in [File] > [Various Settings] > [Menu Visibility Options].
- The imprint can be changed in the [Timestamp] tab in preferences.
- When a timestamp is applied with an imprint format other than [Invisibility] (i.e., [The circular type] or [The corner type]), a dedicated “verification tool” provided by AMANO Secure Japan Corporation is required when verifying with other company’s products (e.g., Adobe Acrobat).
https://www.e-timing.ne.jp/product/timestamp/download/evidence-verifier/ 
Differences in Timestamps
There are differences between invisible timestamps applied using the functions in the “Signature/Timestamp” group or the “AMANO Timestamp” group, and timestamps applied with an imprint specified using the functions in the “AMANO Timestamp” group.
Invisible |
In this product, invisible timestamps without an imprint are applied in a manner compliant with the PDF standard.
These timestamps can be verified with any product that supports timestamp verification, not limited to our products. The same applies to the addition of archive timestamps.
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Circular or Corner |
In this product, timestamps with a circular or corner imprint are applied using a unique method of Amano Timestamp.
These timestamps may not be verifiable with general PDF viewers due to the unique method of application. The same applies to the addition of archive timestamps.
Verification of these timestamps requires one of the following:
- Our products that support Amano Timestamp
- Other company’s products that support Amano Timestamp + the verification tool (verification plugin) provided by AMANO Secure Japan Corporation
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There is no difference in the effectiveness of the timestamps, regardless of the format.